Basic properties of samarium cobalt magnets
- the main element is samarium, cobalt, and some other trace elements
- high temperature sintering (Shaped by mold firstly, than sintered by high temperature)
- SmCo Magnet material is bright gray, usually be plated by nickel
- The maximum operating temperature is up to 250-300 ℃, it is suitable for many kinds of high-performance motor
- mainly divided into two types of 1: 5 (SmCo5) and (Sm2Co17)
- samarium cobalt magnets are mostly in round shape.The thickness is 1/8 of the diameter, and be magnetized through thickness
- high temperature sintering (Shaped by mold firstly, than sintered by high temperature)
- SmCo Magnet material is bright gray, usually be plated by nickel
- The maximum operating temperature is up to 250-300 ℃, it is suitable for many kinds of high-performance motor
- mainly divided into two types of 1: 5 (SmCo5) and (Sm2Co17)
- samarium cobalt magnets are mostly in round shape.The thickness is 1/8 of the diameter, and be magnetized through thickness
Material Characteristics of Smco magnet
Materials |
Grade |
Remanent Flux Density Br |
Coercivity Hcb |
Intrinsic Coercivity Hcj |
Max. Energy Product (BH)max |
Curie Temperature Tc |
Density ρ |
Temperature Coefficient △Bd/Bd |
Linear Expansion Coefficient |
Webster Hardness |
|
Unit |
T (kGs) |
kA/m (kOe) |
kA/m (kOe) |
kJ/m3 (MGOe) |
℃ |
g/cm3 |
%℃ |
C⊥ (1℃) |
C// (1℃) |
Hv |
|
1:5 SmCo5 |
JPM-XGS18 |
0.8~0.9 (8.0~9.0) |
600~700 (7.5~8.8) |
≥1194 (≥15) |
143±16 (18±2) |
750~800 |
8.2~8.4 |
-0.05 |
13x10-6 |
6x10-6 |
450~500 |
JPM-XGS18G |
0.8~0.9 (8.0~9.0) |
600~700 (7.5~8.8) |
≥1592 (≥20) |
143±16 (18±2) |
750~800 |
8.2~8.4 |
-0.05 |
13x10-6 |
8x10-6 |
450~500 |
|
JPM-XGS20 |
0.90~0.95 (9.0~9.5) |
676~740 (8.5~9.3) |
≥1194 (≥15) |
159±16 (20±2) |
750~800 |
8.2~8.4 |
-0.05 |
13x10-6 |
6x10-6 |
450~500 |
|
JPM-XGS20G |
0.90~0.95 (9.0~9.5) |
676~740 (8.5~9.3) |
≥1592 (≥20) |
159±16 (20±2) |
750~800 |
8.2~8.4 |
-0.05 |
13x10-6 |
8x10-6 |
450~500 |
|
JPM-XGS22 |
0.94~1.00 (9.4~10.0) |
700~748 (8.8~9.4) |
≥1194 (≥15) |
175±16 (22±2) |
750~800 |
8.2~8.4 |
-0.05 |
13x10-6 |
6x10-6 |
450~500 |
|
JPM-XGS22G |
0.94~1.00 (9.4~10.0) |
700~748 (8.8~9.4) |
≥1592 (≥20) |
175±16 (22±2) |
750~800 |
8.2~8.4 |
-0.05 |
13x10-6 |
6x10-6 |
450~500 |
|
2:17 Sm2Co17 |
JPM-XGS26L |
1.0~1.08 (10.0~10.8) |
477~577 (6.0~7.0) |
493~716 (6.2~9.0) |
206±16 (26±2) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |
JPM-XGS26H |
1.0~1.08 (10.0~10.8) |
716~812 (9.0~10.2) |
≥1592 (≥20) |
206±16 (26±2) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |
|
JPM-XGS26U |
1.0~1.08 (10.0~10.8) |
716~812 (9.0~10.2) |
≥1990 (≥25) |
206±16 (26±2) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |
|
JPM-XGS28L |
1.06~1.10 (10.6~11.0) |
557~756 (7.0~9.5) |
636~955 (8.0~12.0) |
223±16 (28±2) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |
|
JPM-XGS28H |
1.06~1.10 (10.6~11.0) |
756~836 (9.5~10.5) |
≥1592 (≥20) |
223±16 (28±2) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |
|
JPM-XGS28U |
1.06~1.10 (10.6~11.0) |
756~836 (9.5~10.5) |
≥1990 (≥25) |
223±16 (28±2) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |
|
JPM-XGS30L |
1.08~1.15 (10.8~11.5) |
557~796 (7.0~10.0) |
636~955 (8.0~12.0) |
229±16 (30±2) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |
|
JPM-XGS30U |
1.08~1.12 (10.8~11.2) |
796~836 (10.0~10.5) |
≥1990 (≥25) |
239±16 (30±2) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |
|
JPM-XGS32 |
≥1.12 (≥11.2) |
≥557 (≥7.0) |
≥637 (≥7.0) |
≥239 (≥30) |
800~850 |
8.3~8.5 |
-0.03 |
11x10-6 |
8x10-6 |
500~600 |